OpenOffice is a amazing opensource office package that allows the user to create, edit and share documents in many formats, including MSOffice formats. It has a lot of great features that make it THE option over MSOffice, which can be quite costly. Here are some great sites that I’ve found regarding OpenOffice:
OpenOffice Writer Tutorial – printable, but over 500 pages. Use online or print a few pages as needed.
InPics OpenOffice Writer Tutorial – awesome tutorial using pictures for visual learners.
OpenOffice Calc Chart Tutorial – printable!
OpenOffice Calc Guide – this is printable, but it’s over 400 pages – I’d use it online for reference.